• 文献标题:   TiO2@RGO (reduced graphene oxide) doped nanoparticles demonstrated improved photocatalytic activity
  • 文献类型:   Article
  • 作  者:   AQEEL M, ANJUM S, IMRAN M, IKRAM M, MAJEED H, NAZ M, ALI S, AHMAD MA
  • 作者关键词:   metal oxide, graphene, solgel, waste water treatment, photocatalytic activity
  • 出版物名称:   MATERIALS RESEARCH EXPRESS
  • ISSN:   2053-1591
  • 通讯作者地址:   Govt Coll Univ
  • 被引频次:   19
  • DOI:   10.1088/2053-1591/ab244a
  • 出版年:   2019

▎ 摘  要

Reduced graphene oxide-RGO was employed in various concentrations (2, 4, 6, 8) % to TiO2 nanoparticles using colloidal blending. X-ray diffraction (XRD) confirmed presence of anatase phase and improved crystallinity with doping. The presence of functional groups and Ti-O-Ti (similar to 500-600 cm(-1)) were confirmed by Fourier transform infrared spectroscopy (FTIR). The absorption increased upon doping gradually recorded via UV-visible spectroscopy. The Graphene oxide-GO/RGO sheets and irregular spherical morphologies were observed under transmission and field emission electron microscope respectively. Raman spectrums confirmed GO in TiO2 and RGO-TiO2 nanocomposite showed highest photocatalytic potential with graphene oxide (8% wt/wt). The higher photocatalytic activity of nanocomposites is mainly due to reduced graphene oxide (RGO) acted as electron acceptor, adsorbent and photosensitizer in dyes photodecomposition. It is noteworthy that RGO-TiO(2)is beneficial and promising photocatalyst to clean the environment and wastewater.